Near-infrared spectrophotoscopy of finger venules in assessment of autonomic dysfunction.

Obayashi, K; Ando, Y; Nakamura, M; Yamashita, T; Ueda, M; Haraoka, K; Terazaki, H; Uchino, M · Neurology · 2004

case_series · Level IV

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Abstract

The authors evaluated morphologic changes in the venules of the finger using near-infrared spectrophotoscopy in patients with autonomic dysfunction, such as familial amyloidotic polyneuropathy and multiple-system atrophy. Abnormalities of the venules, such as tortuosity, irregular venous caliber, and microaneurysm-like change, and a linear negative correlation between the degree of orthostatic hypotension and the degree of vasoconstriction of the venules were observed.

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